Link-motion side bearing.



A. STOIKOWITZ.

LINK MOTION SIDE BEARING.

APPLICATION FILED 0GT.31,1913.

i mg am, Patented DMZ-29,1914.

s'raras PATENT o ALEXANDER STOIKOWITZ, OF MONTREAL, QUEBEC, CANADA, ASSIGNOB TO LINK SIDE- BEABING COMPANY, OF HAMMOND, INDIANA, A CORPORATION.

LINK-MOTION srnn sesame.

Specification of Letters Patent- Patented Dec. 29, 1914.

Application flied mm a1, 1918. Serial no.7aaa2.

To all whom it ma concern:

Be it known t at I, ALEXANDER S'ronb owrrz, a subject of the Emperor of Austria- This invention relates to improvements inside bearings for railway cars,'and the object'is to provide a means of attachment b'etween car bodies and trucks which will act as a side bearing to prevent undue rocking of the body and at the same, time hold thetrucks to the cars inthe event of collision, and thus r'event telescoping.

. A -further object is to provide a side bearing' of the link type so designed that the.

truck will'swivel within certain. limits in a plane parallel with the floor.

A'still further object is to provide means by' which the weight of the car body may be carried at the slde's of the truck in place of at the center, as is now. the usual practice, thus reducing weight of truck and truck bolster and enabling a lighter truck to be used. n

- The device consists essentially of an oscillator or compression link'attached at one and either to the car body or truck as desired, and'connected at its 0 posite ends by tension" links with the mem er to which it is'no't attached. These tension links'are so proportioned and disposed that the truck may be swiveled under the car in a plane parallel with the floor.

In thedrawings which illustrate the invention: Figure 1 is a side elevation of the device as applied to a truck of the six wheel passen er car t pe. Fig. 2 is a side elevation '0 the device as applied to a truck of the four wheel freight car type. an'end elevation of the form shown in Fig. 1. Fig. 4 is an end elevation of the form shown in 'Fi 2. Fig. 4 is a view similar to Fig. 3, s owing a slightly alternative form of link motion. I

Referring more particularly to the drawings, 5 designates the lower edge of a body sill or the lower side of the floor, according to the structure of the car, and in Fig; 1, 6 designates a portion of the underframing of the can In the same figure, 7 designates Fig. 3 is the truck bolsters resting on the elliptic sprin s 8 connected at adjacentends by the arch ar 9. 10 designates the side frame of the truck. In this arrangement, the oscillator or compression link 11 is pivotally connected by the pin 12 to a suitable anchor.

plate 13 secured to the portion 6 of the car underframe. This oscillator is of U-shape, as clearly shown in Fig. 3, and is mounted on the pm 12 at the extremities of its arms, the central portion 14 passing under the arch bar, so that the side portions or arms 15 embrace the arch bar. Connection is established between the oscillator and the arch bar by means of tension, links 16, which are of flattened ring form. These links engage in sockets 17 located equidistant from the vertical center of the oscillator at its looped end. The links 16 surround the arch bar, as clearl shown, and rest in sockets 18 formed on t e upper edge thereof. The arch bar sockets 18 are formed farther apart than the oscillator sockets 17, so that the links diverge from one-another at the ends'nearest the pivotal point ofthe oscillator. This arrangement combined with certain approximate proportion of the parts is essential in order that the pivotal point may move in a horizontal plane withincertain limits.

In the form shown in Figs. 2 and 4, a special hanger 19 is attached to the car body, and is provided with sockets 18 on its lower edge corresponding with the sockets 18 in .the upper edge of the arch bar. In a freight car truck, the load is carried on a swivel its center with the car body by means of a king pin. In this invention, a socket member '13 is attached to the end of the swivel lank and carries the oscillator 11, which is inverted as clearlyseen and looped over thebracket 19, the links 16 resting in the oscillator sockets and in the sockets 18. In this way, the weight of the car is transmitted directly through the links and oscillator to the end of the swivel plank, so that there is no load applied at thecenter of the swivel plank.

.In operation, this side bearing forms a positive connection between the truck and car body entirely independent of the king pin and of the chains used on passenger car trucks. The track is in addition to being held to the body prevented from turning under the body beyond certain limits. In the form shown in Figs. 31 and 3, the device acts as a side bearing and as a connection between the car body and trucln'but does not carry the load of the body, whereas in the form shown in Figs. '2 and t, the device in addition to acting as aside bearing and conw nection between body and truclr also carries the load of the body. The same etl'ect may be produced in trucks of the passenger car type by connecting the device to the trnclr side frames, which is the load, carrying 15 member approximatelycorresponding to the swivel plank of the freight car truck. Shonld the car body rock, the. movement is transmitted through the positiveconnection to the arch bar or to the swivel plank. Any my side thrust of the car body as occurs in rounding a curve is transmitted-through the oscillator, which is rigid in this direction, to the links which, assume an inclined position relatively to the members supporting them,

as v so that the side thrust is converted into an npward thrust and the stress on the k ng pin and wheel flanges removed. ln rounding a curve, the track also swivels, the oscillator assumes an inclined position, and one linlr go assumes greater inclination than it normally has, while the other linlr assumes a lesser inclination, the resultant ot'the two linlr movements beings shifting of the ivotal center of the oscillator in a horizonta line and not as in an arc. lln'this way, the truck swivels ifreel' under the car, as there is no tendency to li the same, which tendency wonld obvioiisly resist the swivelin motion. In the event of collision or derailment oil the cars,

so the side bearings from a positive connection between the tracks and car body, so that the cars are much more likely to remain upright and are absolutely prevented from telescog ingias the trncl: of one car will catch on on iindertrame oi the next.

In the form shown in hig. t, the device is constructed without the ass of the U-shaped oscillator and ring links, the oscillator being a straight piece on one side only of the bar so and the linlrs being similar straight mem bers pinned at one end to the oscillator and at the other to the bar.

Having thus described my invention, what ll claim iszl. A side bearing for cars, comprising the combination with two relatively movable car portions of an oscillator pivotally attached at one end to one or" said car portions, and a pair of links connecting the opposite end or to said oscillator with the other car portion.

2. In a side bearin the combination'with two relatively movab e car portions, of a bar secured to one of said portions, a ll-waped oscillating member embracing said her and c5 pivotally connected to the other car portion,

and links connecting the free end of said cillator with the bar embraced by ill,

3. in a side bearing, the combination with secured to one of saidportions, a U-shapea oscillating member-embracing said bar and pivotally connected to the other. car. portion, and linlrs connecting said oscillator and bar diverging from their engagement with the oscillator to their engagement with the bar.

5. lln a sidebearing, the combination with two relatively movable'car portions, of a secured to one of said portions, ll-shaped oscillating member embracing said her pivotally connected to the other car portion, i

and limits connecting said oscillator with the bar arran ,ed to allow the pivoted end of oscillator imitcd movement in straight line. 7

8. A linlr motion side bearing comprising the combination with two relatively movable car portions, of a bar attached to one of said car portions, a ill-shaped oscillator embrac inn; said her and pivotally connected to the other car portion at the extremities of arms, sockets formed in the loop of said on cillator equidistant from the thereof and on the side of the bar remote from pivotal point of the oscillator, soclretstomed on the bar on the side adj scent the oscillator pivotal point and at greater distance apart than the oscillatorssoclrets, and linlrs or ring form resting in the oscillator and bar sockets and connecting the oscillator and bar.

7. A side bearing for cars, comprising the v combination with two relatively movable cor portions, of an oscillator pivotally attached at one end to one on? said car portions and projecting at the other end adjacent said other car portion, and linlrs each pivotally connected at one end tothe free end of oscillator, said links diverging and being;

the other car portion.

- 8. A. side'bearing for cars comprising the combination with a car body and track, of a plurality ot'linlrs connecting the body and truclr for limited movement in parallel planes.

9. A side bearing for cars comprising the combination with a car body and truclr, oi a link connection between the body and trncl: holdingthe ti'nclr'inseparable from the on body.

l0. Aside bearing for cars comprising combination with a car body and track, a

link motion connecting the bod and truck j In witness whereof I have hereunto set for linliiitetlimgvementfm paralle planes. h my'hand in the presence of two'witnesses.

11. Si e earin or cars com risin t e combination with a izar body and lirucln of a, ALEXANDER STOIKOWITZ' 5 link motion connecting the bod and truck Witnesses for limited movement in paralle planes and S. R. W. ALLEN, holding the truck inseparable from thebody. G. M. MORELAND. 

